483 Voltage U DCfix for MPP2 string outside valid range - Fixed DC voltage for string 2 out of bounds.

What does 483 mean?

The fixed DC voltage (U DCfix) setting for the second Maximum Power Point Tracker (MPPT2) string is outside its valid operating range, preventing the inverter from feeding power.

• Incorrect MPP settings in the inverter configuration.
• Problem with the solar string.
• MPPT tracker fault.

Click steps to track your progress.

1. 1

   Access the inverter's settings menu and check the MPP settings for String 2.

2. 2

   Ensure the U DCfix voltage setting is within the acceptable range specified in the manual.

3. 3

   If the status code persists after checking settings, contact a Fronius-trained service technician.